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271 lines
7.5 KiB
271 lines
7.5 KiB
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 |
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/******************************************************************************* |
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* |
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* Module Name: rsirq - IRQ resource descriptors |
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* |
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******************************************************************************/ |
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#include <acpi/acpi.h> |
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#include "accommon.h" |
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#include "acresrc.h" |
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#define _COMPONENT ACPI_RESOURCES |
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ACPI_MODULE_NAME("rsirq") |
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/******************************************************************************* |
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* |
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* acpi_rs_get_irq |
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* |
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******************************************************************************/ |
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struct acpi_rsconvert_info acpi_rs_get_irq[9] = { |
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{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ, |
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ACPI_RS_SIZE(struct acpi_resource_irq), |
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ACPI_RSC_TABLE_SIZE(acpi_rs_get_irq)}, |
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/* Get the IRQ mask (bytes 1:2) */ |
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{ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]), |
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AML_OFFSET(irq.irq_mask), |
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ACPI_RS_OFFSET(data.irq.interrupt_count)}, |
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/* Set default flags (others are zero) */ |
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{ACPI_RSC_SET8, ACPI_RS_OFFSET(data.irq.triggering), |
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ACPI_EDGE_SENSITIVE, |
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1}, |
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/* Get the descriptor length (2 or 3 for IRQ descriptor) */ |
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{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.irq.descriptor_length), |
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AML_OFFSET(irq.descriptor_type), |
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0}, |
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/* All done if no flag byte present in descriptor */ |
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{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3}, |
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/* Get flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */ |
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering), |
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AML_OFFSET(irq.flags), |
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0}, |
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity), |
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AML_OFFSET(irq.flags), |
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3}, |
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.shareable), |
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AML_OFFSET(irq.flags), |
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4}, |
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.wake_capable), |
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AML_OFFSET(irq.flags), |
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5} |
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}; |
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/******************************************************************************* |
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* |
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* acpi_rs_set_irq |
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* |
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******************************************************************************/ |
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struct acpi_rsconvert_info acpi_rs_set_irq[14] = { |
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/* Start with a default descriptor of length 3 */ |
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{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ, |
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sizeof(struct aml_resource_irq), |
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ACPI_RSC_TABLE_SIZE(acpi_rs_set_irq)}, |
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/* Convert interrupt list to 16-bit IRQ bitmask */ |
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{ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]), |
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AML_OFFSET(irq.irq_mask), |
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ACPI_RS_OFFSET(data.irq.interrupt_count)}, |
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/* Set flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */ |
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering), |
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AML_OFFSET(irq.flags), |
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0}, |
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity), |
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AML_OFFSET(irq.flags), |
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3}, |
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.shareable), |
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AML_OFFSET(irq.flags), |
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4}, |
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.wake_capable), |
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AML_OFFSET(irq.flags), |
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5}, |
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/* |
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* All done if the output descriptor length is required to be 3 |
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* (i.e., optimization to 2 bytes cannot be attempted) |
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*/ |
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{ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, |
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ACPI_RS_OFFSET(data.irq.descriptor_length), |
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3}, |
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/* Set length to 2 bytes (no flags byte) */ |
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{ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)}, |
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/* |
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* All done if the output descriptor length is required to be 2. |
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* |
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* TBD: Perhaps we should check for error if input flags are not |
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* compatible with a 2-byte descriptor. |
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*/ |
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{ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, |
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ACPI_RS_OFFSET(data.irq.descriptor_length), |
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2}, |
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/* Reset length to 3 bytes (descriptor with flags byte) */ |
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{ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq)}, |
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/* |
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* Check if the flags byte is necessary. Not needed if the flags are: |
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* ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE |
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*/ |
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{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, |
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ACPI_RS_OFFSET(data.irq.triggering), |
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ACPI_EDGE_SENSITIVE}, |
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{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, |
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ACPI_RS_OFFSET(data.irq.polarity), |
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ACPI_ACTIVE_HIGH}, |
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{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, |
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ACPI_RS_OFFSET(data.irq.shareable), |
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ACPI_EXCLUSIVE}, |
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/* We can optimize to a 2-byte irq_no_flags() descriptor */ |
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{ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)} |
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}; |
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/******************************************************************************* |
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* |
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* acpi_rs_convert_ext_irq |
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* |
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******************************************************************************/ |
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struct acpi_rsconvert_info acpi_rs_convert_ext_irq[10] = { |
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{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ, |
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ACPI_RS_SIZE(struct acpi_resource_extended_irq), |
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ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_irq)}, |
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{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ, |
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sizeof(struct aml_resource_extended_irq), |
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0}, |
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/* |
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* Flags: Producer/Consumer[0], Triggering[1], Polarity[2], |
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* Sharing[3], Wake[4] |
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*/ |
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer), |
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AML_OFFSET(extended_irq.flags), |
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0}, |
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering), |
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AML_OFFSET(extended_irq.flags), |
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1}, |
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity), |
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AML_OFFSET(extended_irq.flags), |
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2}, |
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.shareable), |
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AML_OFFSET(extended_irq.flags), |
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3}, |
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.wake_capable), |
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AML_OFFSET(extended_irq.flags), |
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4}, |
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/* IRQ Table length (Byte4) */ |
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{ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count), |
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AML_OFFSET(extended_irq.interrupt_count), |
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sizeof(u32)}, |
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/* Copy every IRQ in the table, each is 32 bits */ |
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{ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]), |
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AML_OFFSET(extended_irq.interrupts[0]), |
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0}, |
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/* Optional resource_source (Index and String) */ |
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{ACPI_RSC_SOURCEX, ACPI_RS_OFFSET(data.extended_irq.resource_source), |
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ACPI_RS_OFFSET(data.extended_irq.interrupts[0]), |
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sizeof(struct aml_resource_extended_irq)} |
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}; |
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/******************************************************************************* |
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* |
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* acpi_rs_convert_dma |
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* |
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******************************************************************************/ |
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struct acpi_rsconvert_info acpi_rs_convert_dma[6] = { |
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{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA, |
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ACPI_RS_SIZE(struct acpi_resource_dma), |
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ACPI_RSC_TABLE_SIZE(acpi_rs_convert_dma)}, |
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{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA, |
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sizeof(struct aml_resource_dma), |
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0}, |
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/* Flags: transfer preference, bus mastering, channel speed */ |
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{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer), |
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AML_OFFSET(dma.flags), |
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0}, |
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master), |
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AML_OFFSET(dma.flags), |
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2}, |
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{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type), |
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AML_OFFSET(dma.flags), |
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5}, |
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/* DMA channel mask bits */ |
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{ACPI_RSC_BITMASK, ACPI_RS_OFFSET(data.dma.channels[0]), |
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AML_OFFSET(dma.dma_channel_mask), |
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ACPI_RS_OFFSET(data.dma.channel_count)} |
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}; |
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/******************************************************************************* |
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* |
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* acpi_rs_convert_fixed_dma |
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* |
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******************************************************************************/ |
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struct acpi_rsconvert_info acpi_rs_convert_fixed_dma[4] = { |
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{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_DMA, |
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ACPI_RS_SIZE(struct acpi_resource_fixed_dma), |
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ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_dma)}, |
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{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_DMA, |
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sizeof(struct aml_resource_fixed_dma), |
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0}, |
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/* |
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* These fields are contiguous in both the source and destination: |
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* request_lines |
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* Channels |
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*/ |
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{ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.fixed_dma.request_lines), |
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AML_OFFSET(fixed_dma.request_lines), |
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2}, |
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{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.fixed_dma.width), |
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AML_OFFSET(fixed_dma.width), |
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1}, |
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};
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